Window and door screen.



APPLICATION FILED MAR. 3, 1910.

Patented Nov. 15, 1910.

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THE NORRIS PETERS cm. WASHINDTDN, n. c,

S ATS PA rte WINDOW AND DOOR SCREEN.

Specification of Letters Patent.

Patented Nov. 15, 1910.

Application filed March 3, 1910. Serial No. 547,010.

.Cuyahoga and State of Ohio, have invented certain new and usefulImprovements in VVlIlClOW and Door Screens; and I hereby declare thefollowing to be a full, clear, and

exact description of the invention, such as will enable others skilledin the art to which it pertains to make and use the same.

This invention relates to new and useful improvements in window or doorscreens.

The object of this invention is to provide in combination with a. screenof this character a series of exits or passageways through which fliesor other insects may escape from the interior of a room but having suchconformation as will deter flies or other insects from enteringtherethrough.

My invention therefore consists in the features of construction andcombination of parts, described in the specification, pointed out in theclaims and illustrated in the accompanying drawings.

In the accompanying drawings Figure 1 is a view of a screen showing theinner face thereof. Fig. 2 is a view of a. screen showing the outer facethereof. Fig. 3 is a section on line 33, Fig. 1, on an enlarged scale.Fig. 4 is a section on line 4-l, Fig. 1, on the same scale as Fig. 3.Fig. 5 is a section on line 55, Fig. 1, on the same scale as Fig. 3.Fig. 6 is a section on line 6-6, Fig. 4. Fig. 7 is a perspective view ofone of the inverted V-shaped members detached from the supporting bar.

Again referring to the drawings 1 represents the frame of the screenacross which is stretched the wire netting or gauze which forms thematerial of the screen and which is made in two sections 2 and 3. Thesection 2 extends from the bottom of the frame to within a shortdistance of the top thereof which consist of a plurality of inverted V-shaped members which are rigidly secured to said bar and extend downbetween the overlapping portion of the screen section. These V-shapedmembers are preferably formed of sheet metal and each member comprisesside pieces 8 which are inclined toward each other at their upper endsbut do not touch so that an exit space 10 is formed at the upper end ofeach V-shaped member. each side with a flange 12 which extends parallelwith the adjacent screen section and lies flat against the same. Theflanges 12 on the respective sides 8 of each V-shaped member join at theupper part of the V shaped member. It will be seen therefore that eachside piece 8 with its flanges 12 forms a passageway 13 which iscompletely inclosed on three sides and the two passageways unite in acompletely inclosed channel 14 just below the exit opening 10. Each V-shaped member is connected at its lower end with the V-shaped members ateither side thereof, as shown at 15, so that the said V- shaped membersform a continuous guard across the screen between the overlappingportions of the sections 2 and 3, the only openings in which are theexits 10.

The operation of the device is as follows, Vhen a fly or other insectalights on the screen in seeking a way of escape it will crawl towardthe upper part of the screen and will enter the lower part of one of theV-shaped members and will move from side to side until it is in one ofthe passageways 13, and as these are inclosed on threesides they arecomparatively dark and the fly will notice the light coming through theexit opening 10 and will make its way thereto in escaping. On the otherhand if an insect or fly is on the outside of the screen and approachesone of the exits 10 it will not enter therethrough because thecompletely inclosed channel just below the exit cuts off all light andtherefore offers no attraction which would induce the fly to entertherein.

What I claim is, Y

1. In a screen, the combination of a frame having two sections of screenmaterial stretched thereon, with the upper part of one sectionovelapping the lower part of the other section and a guard arranged toextend horizontally between the overlapping portions of said screensections, said guard comprising a serles of lnverted V-shaped Each sidepiece 8 is provided at members, each member being connected with themembers at each side thereof at its lower end, each member being formedof sheet metal and consisting'of two side members inclined toward eachother and spaced apart at their upper ends to form an exit opening andeach side member being provided with side flanges which extend parallelwith and lie flat against the adjacent screen sections, the flanges onthe respective sides meeting at the top of said V-shaped members andforming channels immediately below the exit openings.

2. In a screen, the combination of a frame having two sections of screenmaterial stretched thereon, with the upper part of one sectionoverlapping the lower part of the other section and a guard arranged toextend horizontally between the overlapping portions of said screensections, said guard comprising a series of inverted V-shaped members,each member abutting against the member at each side thereof at itslower end, each member being formed of sheet metal and consisting of twoside members inclined toward each other and spaced apart at their upperends to form an exit opening and each side member being provided withside flanges which extend parallel .with and lie flat against theadjacent screen sections.

3. In a screen, the combination of a frame having two sections of screenmaterial stretched thereon, with the upper part of one sectionoverlapping the lower portion of the other section and a guard arrangedto extend horizontally between the overlapping portions of said screensections, said guard comprising a binding strip arranged to engage theupper edge of the lower screen section, a series of inverted V-shapedmembers connected at their upper ends to said strip and at their lowerends to each other, each V-shaped member comprising two side membersinclined toward each other and spaced apart at their upper ends to forman exit opening and each'side member being provided with side flangeswhich extend parallel with and lie flat against the adjacent screensections.

l. In a screen, the combination of a frame, having two sections ofscreen material stretched thereon, with the upper part of one sectionoverlapping the lower part of the other section and a guard arranged toextend horizontally between the overlapping portions of said screensections, said guard comprising a strip of sheet metal arranged toengage the upper edge of the lower screen section and a series ofinverted V-shaped members connected at their upper ends to said stripand at their lower ends to each other, each V-shaped member consistingof two side members inclined toward each other and spaced apart at theirupper ends to form an exit opening and each side member being providedwith side flanges which extend parallel with and lie flat against theadjacent screen sections, the flanges on the respective sides meeting atthe top of said V-shaped members and forming channels immediately belowthe exit openings.

In testimony whereof, I sign the foregoing specification, in thepresence of two witnesses.

WALTER S. CALDWELL.

lVitnesses VIo'roR C. LYNCH, N. L. MoDoNNnLL.

